The brains over at MIT have created a tiny origami robot that can fold on itself, swim, walk and--once you're done using it--fully disintegrate in acetone. The robot is powered by electromagnetic coils and can assemble itself using heat, allowing it to dig, move objects, even carry loads up to twice its weight. It was presented at the 2015 International Conference on Robotics and Automation, an annual conference covering advances in robotics.Although the robot currently has no practical usage, researchers are hoping that this technology will eventually lead to robots that can dissolve in water and autonomously operate inside the human body, making surgery less invasive and less prone to human error. Pretty cool for something smaller than your pinky finger! https://www.youtube.com/watch?v=f0CluQiwLRg